You rub on sport suspension with 10mm spacers?? Im running 255/30 Toyo T1-S -18mm spacers and under a full load, I still dont rub. Maybe because I have Koni yellow shocks? Hmmm, definately a puzzler!

No, I'm fine with 10mm in the rear, but rubbed badly with 15mm in the rear, especially on the passenger side. Michelin PSS are squared off on the outer edges, and run wide for their stated size. I believe Toyo's run narrow for their stated size. Your Koni's are probably stiffer, as well, so you don't compress as much on bumps. My car sits pretty low in the rear for stock sport suspension that only has 7500 miles on it, and the tires barely clear the fender when I hit bumps.